RUKO STB-Bit-HSS-TiN 4,0-30,0 mm porraspora

Drill clean, burr-free holes from 4 mm to 30 mm in sheet metal, non-ferrous metals, plastics, and stainless steel up to 600 N/mm² without pre-drilling. The RUKO STB-Bit-HSS-TiN step drill features a self-centering point and a TiN coating for long life.

Overview

This step drill bit is made from high-speed steel (HSS) with a titanium nitride (TiN) coating. It has 13 steps covering diameters from 4 mm to 30 mm, a cylindrical shank of 10 mm, and a total length of 105 mm. Suitable for use in drill chucks with 10 mm capacity.

What stands out

• Self-centering point for precise starts
• Burr-free drilling without pre-drilling
• TiN coating for extended tool life
• Wide diameter range in one tool

Technical details

• Drill Bit Type: Step drill bit
• Material: High-Speed Steel (HSS)
• Coating: Titanium Nitride (TiN)
• Drilling Diameter Range: 4 - 30 mm
• Number of Steps: 13
• Shank Type: Cylindrical
• Shank Diameter: 10 mm
• Total Length: 105 mm
• Max Material Thickness: 4 mm
• Point Angle: 118°
• Flute Type: Spiral Flute
• Cutting Direction: Right-hand cutting
• Standard: DIN 1412 C
• Surface Finish: Bright (TiN coated)
• Packaging: Single piece

Our verdict

A versatile step drill for professionals needing clean, accurate holes in sheet materials without changing bits.